Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9074805 | Method and apparatus for improving accuracy of A/C diagnostic tests | — | 2015-07-07 |
| 8800306 | Portable refrigerant recovery machine | Michael Steven Schoenoff | 2014-08-12 |
| 8661839 | Background tank fill based on refrigerant composition | — | 2014-03-04 |
| 8661836 | Apparatus to clear oil from the hoses and front end of a recovery recharge machine | Gary P. Murray, William Brown | 2014-03-04 |
| 8621879 | Air conditioning system recharging method and apparatus | William Brown | 2014-01-07 |
| 8590335 | Method and apparatus for clearing oil inject circuit for changing oil types | William Brown, Gary P. Murray | 2013-11-26 |
| 8590321 | Vacuum pump oil changing method and apparatus | — | 2013-11-26 |
| 8572992 | Method for recovery and recharge of blend refrigerants with blend sent for reclamation | Gary P. Murray, William Brown | 2013-11-05 |
| 8516836 | System and method for accurately recharging an air conditioning system | William Brown | 2013-08-27 |
| 8434344 | Verification of scale calibration method and apparatus | William Brown | 2013-05-07 |
| 8406931 | A/C service tool controller | Michael Steven Schoenoff, William Brown | 2013-03-26 |
| 8342577 | Magnetic quick disconnect fitting | Michael Steven Schoenoff | 2013-01-01 |
| 8272227 | System and method for accurately recharging an air conditioning system | William Brown | 2012-09-25 |
| 8272228 | Apparatus to clear oil from the hoses and front end of a recovery recharge machine | Gary P. Murray, William Brown | 2012-09-25 |
| 8122731 | Method and apparatus for clearing oil inject circuit for changing oil types | Gary P. Murray, William Brown | 2012-02-28 |
| 8079226 | Method for accurately recharging A/C systems | William Brown | 2011-12-20 |
| 7992721 | Method and apparatus for confirming that a filter drier has been replaced | — | 2011-08-09 |
| D640437 | Air conditioning maintenance cart assembly | Scott Opsahl, Marc Rosone, Tim Wagaman | 2011-06-21 |
| 7937957 | Method for using high pressure refrigerant for leak checking a system | — | 2011-05-10 |
| 7832222 | Background tank fill based on refrigerant composition | — | 2010-11-16 |
| 7739895 | Verification of scale calibration method and apparatus | William Brown | 2010-06-22 |